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From: William Josephson <jkw@eecs.harvard.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] Venti security in view of SHA-1 exploity
Date: Sun, 20 Feb 2005 13:08:00 -0500	[thread overview]
Message-ID: <20050220180800.GB47983@mero.morphisms.net> (raw)
In-Reply-To: <01bb01c516d5$143f6030$1f587d50@kilgore>

On Sat, Feb 19, 2005 at 11:48:06PM +0100, boyd, rounin wrote:
> >To be more precise: 2DES doesn't buy you much over DES,
> >while 3DES would appear to.
>
> nope, there is a meet in the middle attack for 2DES and going
> to 3DES is trivial to implement.

Actually, if you look at the numbers you will see that the
meet in the middle attack makes 2DES roughly equivalent to
DES, but that that is not the case for 3DES.

 -WJ


  reply	other threads:[~2005-02-20 18:08 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-19 18:37 [9fans] Drawterm and security Brian L. Stuart
2005-02-19 18:48 ` andrey mirtchovski
2005-02-19 21:00   ` Brian L. Stuart
2005-02-19 18:58 ` Russ Cox
2005-02-19 19:15   ` blstuart
2005-02-19 19:20     ` Russ Cox
2005-02-19 20:24       ` blstuart
2005-02-19 20:34         ` andrey mirtchovski
2005-02-19 19:20   ` [9fans] Venti security in view of SHA-1 exploit Paul Lalonde
2005-02-19 19:26     ` andrey mirtchovski
2005-02-19 19:35       ` Paul Lalonde
2005-02-19 20:14         ` Tim Newsham
2005-02-20  4:24           ` Karl Magdsick
2005-02-19 20:15     ` Russ Cox
2005-02-19 22:25       ` boyd, rounin
2005-02-19 22:44         ` [9fans] Venti security in view of SHA-1 exploity William Josephson
2005-02-19 22:48           ` boyd, rounin
2005-02-20 18:08             ` William Josephson [this message]
2005-02-19 23:21         ` [9fans] Venti security in view of SHA-1 exploit Bruce Ellis
2005-02-20  1:00           ` Tim Newsham
2005-02-20  3:53           ` Karl Magdsick
2005-02-19 19:52 ` [9fans] Drawterm and security Skip Tavakkolian
2005-02-19 19:11   ` blstuart
2005-02-21 11:30   ` Robert Raschke
2005-02-21 19:20     ` geoff

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